Code error with parameter
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Ellen Brown
el 4 de En. de 2020
Comentada: Star Strider
el 4 de En. de 2020
I'm trying to adapt my code below
rg = 0.01;
rl = 0.01;
s1 = [-1:0.000001:5];
x = ((s1-rg-rl)+sqrt((rg+rl-s1).^2+4.*s1.*rg))./(2.*s1);
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Star Strider
el 4 de En. de 2020
I am not certain what you want, however it most likely depends on how you define ‘t’.
Example —
rg = 0.01;
rl = 0.01;
s1 = [-1:0.000001:5];
x = ((s1-rg-rl)+sqrt((rg+rl-s1).^2+4.*s1.*rg))./(2.*s1);
t1 = 0:numel(s1)-1; % Define ‘t1’, Interval = 1 sec
t2 = (0:numel(s1)-1)*5; % Define ‘t2’, Interval = 5 sec
figure
plot(t1, x)
hold on
plot(t2, x)
hold off
grid
legend('\Delta t = 1 s', '\Delta t = 5 s', 'Location','E')
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Star Strider
el 4 de En. de 2020
As always, my pleasure!
Not cheeky at all! That’s a perfectly legitimate question.
To store the ‘s_val’ values (without re-writing the rest of the loop):
xs = zeros(size(U));
s_val_vct = xs;
for k = 1: numel(U)
s_val = s1(k)*(rem(k,2)==0) + s2(k)*(rem(k,2)==1); % Even-Odd Values of ‘k’ Select ‘s’
xs(k) = x(s_val);
s_val_vct(k) = s_val;
end
Then to plot them:
figure
plot(s_val_vct, xs, 'p')
grid
xlabel('s')
ylabel('x')
It’s best to plot them with markers, unlless you want to use the sort function to sort ‘xs’ and ‘s_val_vct’ and then plot with lines, because ‘s_val’ alternates between poisitive and negative values, and that would create a confusing and disordered plot. (I like plotting with pentagrams. Choose the marker you want.)
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